No period past luteal phase length

My usual luteal phase length is 14 days and my temperatures have been up for 16 days past ovulation and I have no sign of my period, nor any sign that I might be pregnant. What should I do?

Take a pregnancy test! There is a good chance that you are pregnant. If the
results are positive, make an appointment with your doctor to confirm the pregnancy
and to arrange for prenatal care.

If the results are negative, you may have ovulated later and may need to adjust
your chart. If your ovulation date is clear and you don't get your period or
test positive on a pregnancy test within 18 days of ovulation, you should check
with your doctor to find out what could be keeping your period away.